If you want to register a domain name to make certain that nobody else will take it, however, you haven't created the website for it yet, you can park it. That is a feature that registrar companies provide when a domain isn't connected to any web or e mail hosting service. This way, you can protect a brand name, for example, and you'll own the domain name in question even though it won't open any content. If you want, you may choose some standard template that the registrar offers, like For Sale or Under Construction, or you can direct the domain to a new web address. Your second option is very useful if you own a number of domain names, but you want each and every one of them to open the same website. As an illustration, you could register domain.net and domain.org, then park them and forward them to domain.com. In this example, you're going to need hosting for the third domain address only and the traffic to the other ones will be redirected to it.